A friend of mine sent me this picture and the caption that goes with it.

"Battle of the St Quentin Canal (Saint-Quentin). Men of the American 30th Infantry Division at rest with German prisoners following the capture of Bellicourt, 29th September 1918. In the background are British Mark V Tanks with 'cribs' of the 8th Battalion, Tank Corps, which were one of four battalions of the V Tank Brigade allotted to the 5th Australian Division and American Corps for the operation."